Maybe in the previous news there is an exchange of courtesies between AMD and NVIDIA, but Intel yesterday became one cause for concern more, as the Ryzen Threadripper 1950X came out on the market, and AMD will give its main competitor only at the end of September , And at a much higher price.

Intel decided to "early release Kraken", giving trusted enthusiasts samples of 16-core processors Core i9-7960X. The Taiwan overclocker HiCookie was among the lucky ones, and in the HWBot Prime test he won first place in the "16-core category" with a result of 14 751 points. The Core i9-7960X processor had to overclock it to 5.6 GHz with the activity of all cores and Hyper-Threading. The processor was cooled with liquid nitrogen.

AMD's interests in this fight represented the edition of TheOverclocker , which made its Ryzen Threadripper 1950X copy work at 5507 MHz with the preservation of all 16 cores and 32 threads. The result in 9810.08 points was enough only for the sixth place in HWBot Prime.

I must say that Intel was advancing "a wide front", and the engineering model also went to the Greek champion TheOverclocker , which at 5.6 GHz showed the best result of Cinebench R15 among processors with 16 cores, corresponding to 4931 points.

KYLAKE-X VERSUS RYZEN THREADRIPPER IN EXTREME OVERCLOCKING

POSTER: computer news || AMD NAVI WILL OPEN THE WAY TO MULTI-CHIP GRAPHICS PROCESSORS

DATE:2017-08-11

NVIDIA is still proud of its ability to create large monolithic graphics processors with a large number of transistors, but itself is slowly exploring ways to retreat in the form of multi-chip graphics technology.

According to colleagues, the statements of Raja Koduri about the possibility of using the interface of Infinity Fabric in graphics solutions explicitly hint at the possibility of multi-chip GPUs, even within the framework of the Navi generation. Each new technical process is more complicated. Only a certain stagnation in the field of CrossFire could be embarrassing, but Infinity Fabric opens new prospects for developers. In any case, this is only a private opinion, and we still have to find out which layout solutions AMD will use in the future.

AMD NAVI WILL OPEN THE WAY TO MULTI-CHIP GRAPHICS PROCESSORS

Since Thursday, Japanese stores lured future buyers of AMD Ryzen Threadripper processors with souvenir slippers, but access to commodity processors was not received until ten in the evening, so colleagues from AKIBA PC Hotline had the opportunity to assess the loyalty of the local public to AMD products.

The latter must include compatible motherboards and cooling systems.

We have repeatedly noted that in Japan imported electronics is heavily taxed, so computer components are offered at traditionally high prices. In the case of the Ryzen Threadripper 1950X processor, which costs $ 999 in the US, it played a cruel joke with Japanese stores. According to reporters, many buyers preferred to buy only motherboards with Socket TR4, and they bought processors "somewhere else".

INSTEAD OF RYZEN THREADRIPPER, BUYERS PREFERRED MOTHERBOARDS

POSTER: computer news || DETAILS ABOUT THE WORK OF AMD RYZEN THREADRIPPER WITH MEMORY AND PCIE PERIPHERALS

DATE:2017-08-11

Yesterday can be considered the day when the sales of the world's most productive processors - 12 and 16-core AMD Ryzen Threadripper models started. While a detailed review of the new products is being prepared, we will, in the hot pursuit, review a number of features of the Ryzen Threadripper with memory and PCIe peripherals.

Processors AMD Ryzen Threadripper, which is no longer a secret, physically consist of four 8-nuclear crystals "Summit Ridge", two of which are blanks. This is the legacy of the packaging of AMD EPYC server processors, the number of cores in which reaches 32 pieces. Such a structure, when conditionally close and distant controllers (memory channels and PCI Express lines) appear, imposes its own peculiarities (limitations) on the operation of the computer system as a whole.

In fact, each AMD Ryzen Threadripper processor is a dual-processor system with all the ensuing properties - increasing latency when accessing memory attached to the "second" processor, and the need to optimize gaming and mass software in the likeness of optimizing server software. Otherwise, we are disappointed or, optimistically speaking, we will not be able to take full advantage of the potential inherent in AMD Ryzen Threadripper.

By default, AMD Ryzen Threadripper runs in nUMA mode (heterogeneous shared memory or local mode). In the BIOS or in the AMD Ryzen Master utility (with the subsequent obligatory reboot of the system), you can choose a different mode - UMA (shared memory or distributed mode). There is no switch on the fly. In one case, programs can benefit from the choice of mode, in the other - to lose. Select and experiment with users, although AMD will give its recommendations. Also, to optimize
the system operation, a physical rearrangement of the memory modules is required, if there are less than four (one module per chip or two modules per crystal).

In the local nUMA mode, we get minimal delays, but we lose two memory channels and, consequently, radically reduce the overall bandwidth of the memory system. In the distributed UMA mode, we get all four memory channels, but we lose in delays when the core from one cluster accesses the memory controller of the core of the cluster in the second crystal. According to AMD data for DDR4-3200 modules, delays in local mode can reach 66.2 ns, and in distributed mode - 86.9 ns. In practice, in the absence
of programs optimization , the difference can be many times.

A similar problem with the growth of delays can be observed with the choice of PCI Express lines, of which the Ryzen Threadripper processors have 64 pieces per two crystals. Compensate for this feature the company is an impressive package of simultaneously working PCI-e peripherals. You can connect 8 devices to the processor simultaneously. More precisely, one of them - the chipset x399 - is always connected and takes 4 lines. The remaining 7 devices, for example, can be represented
by four video cards and three SSDs or six video cards to speed up calculations and one SSD.